Investigation of Tensile Strength

Investigation of Tensile Strength Direct tension is another method to categorize fatigue cracking. In this test procedure, tensile strength is measured in terms of tensile stress and tensile strain. Tensile stress is basically the resistance to fracture damage and tensile strain at maximum load is the ductility potential. In this testing procedure uniaxial tension is applied on the specimen. A cylindrical specimen is required having a 4 inch (100 mm) diameter and 6 inch (150 mm) or 4 inch (100 mm) height.(Walubita et al., 2011). The load is usually monotonically increasing at loading rate is 0.05 in./min (1.3 mm/min) at 77 °F . (Walubita et al., 2005). For direct tension test specimen were compacted in the Superpave Gyratory Compactor having the mold height of 6.9 in (175 mm) in and a diameter of 5.9 in (150 mm) diameter. Sample is then put for curing for 24 hours and after that, it needs to be glued to the testing device carefully before running the test. Load, vertical displacement, and time, these are the t hree data that is obtained from the test.    For the DT test the tensile stress can be computed as à Ã†â€™t= P/(à Ã¢â€š ¬r2)=P/à Ã¢â€š ¬D2/4 Where à Ã†â€™t=Minimum tensile stress; p=load; r=specimen radius D= specimen diameter (Dissertation Walubita, 2006) And the tensile strain at maximum axial load can be computed as ÃŽÂ µt=10^6v/h ; ÃŽÂ µt=average axial tensile strain, V= average axial specimen deformation h= specimen height. This way, HMA stiffness can be obtained as St= à Ã†â€™t/ÃŽÂ µt, where St=Youngs Modulus (Stiffness); à Ã†â€™t= Tensile stress (Maximum) ÃŽÂ µt= Tensile strain at maximum axial load. (Walubita et al., 2005), suggested à Ã†â€™t>=65 psi ÃŽÂ µt= (Lytton, 2012) discussed about the procedure of testing field cores for direct tension. After getting the rectangular sample form the cylindrical field core, having length of 4 inch (102mm) and width of 3 inch (76 mm) and thickness of 1.5-3 inch (38-76 mm). As a steel cap is needed to be glued to the each specimen end, the authors used a special gluing jig to keep the specimen centrally aligned with the cap. In total six LVDTs were attached to measure the vertical and horizontal displacement at top, bottom and center layers. The authors run the test in different temperatures (10 °C 20  °C) in electro hydraulic servo machine (MTS) with a feedback frequency of 2Hz (done in an old machine) 20Hz (done in a new machine). Figure 2: Test setup with LVDT arrangement ((Lytton, 2012) References: Dissertation, A., Walubita, L. F. (2006). Comparison of Fatigue Analysis Approaches for Predicting Fatigue Lives of Hot-Mix Asphalt Concrete ( Hmac ) Mixtures Comparison of Fatigue Analysis Approaches for Predicting Fatigue Lives of Hot-Mix Asphalt Concrete ( Hmac ) Mixtures. Analysis, (May). Lytton, R. (2012). Analytical-Numerical Methodology To Measure Undamaged , Fracture and Healing Properties of Asphalt Mixtures, (December). Walubita, L. F., Jamison, B. P., Das, G., Scullion, T., Martin, A. E., Rand, D., Mikhail, M. (2011). Search for a Laboratory Test to Evaluate Crack Resistance of Hot-Mix Asphalt. Transportation Research Record: Journal of the Transportation Research Board, 2210(1), 73-80. https://doi.org/10.3141/2210-08 Walubita, L. F., Martin, A. E., Jung, S. H., Glover, C. J., Chowdhury, A., Park, E. S., Lytton, R. L. (2005). Project Title: Evaluate the Fatigue Resistance of Rut Resistance Mixes . URLà ¢Ã¢â€š ¬Ã‚ ¯: http://tti.tamu.edu/documents/0-4468-1.pdf. Security, 7(2). Wen, H., Investigation of Effects of Testing Methods on Characterization of Asphalt Concrete, Journal of Testing and Evaluation, Vol. 31, No. 6, pp. 1-7, 2003.

Brene Brown – the Power of Vulnerability

1. Summarize the â€Å"Ted† talk: Brene Brown, Ph. D. , LMSW, a self-purported â€Å"shame-and-vulnerability expert†, is a research professor at the University of Houston, Graduate College of Social Work. Focusing the last ten years of her studies on the topics of vulnerability, courage, authenticity, and shame, Brene Brown’s work has been featured on PBS, CNN, NPR, and most notably TED.In her TED talk, she shares the findings of her lengthy qualitative research, a massive collection of interviews including a colorful rendition of her own personal struggles, on the idea of human connection which she states â€Å"fundamentally expanded her perception† and has â€Å"changed the way she lives, loves, works and parents†. Her touching account of her personal struggles with this research centers around her views of vulnerability, which Brown summarizes as our â€Å"ability to empathize, belong, and love†.Brown digs even deeper into her exploration of shame and vulnerability, and how they act as obstacles in one's pursuit of true happiness. Brown draws together her ideas in a concept she labels â€Å"Wholeheartedness†, and illustrates her theory on how to engage in our lives from a place of authenticity and worthiness. 2. Identify the assumptions made by the speaker: To summarize her concept of â€Å"Wholeheartedness†, Brown begins her talk on the topic of ‘Connection’. We are hardwired to connect with others, it’s what gives purpose and meaning to our lives† explains Brown, that in order to allow connection to happen, â€Å"we have to allow ourselves to be seen as we are, not presenting only the parts we think others will like†. During Brown’s research on connection, she elaborated on the idea that we often fear being disconnected from others, which she describes as the meaning of ‘shame’. We often feel shame and fear when we feel that we may become disconnect ed from others.Brown decided to take a one-year detour from her research to explore â€Å"shame† in depth, unexpectedly resulting in six long years of what she quotes as â€Å"the most important things she has ever learned in the decade of her research†. Brown discovered thru her interviews that there were two distinct groups of individuals with only one variable separating the two groups: a sense of ‘Worthiness’, which she defines as â€Å"a strong sense of love and belonging†. Brown explains that the one thing that keeps us from connection is the fear that we are not worthy of connection.While digging deeper into the minds of those individuals whom had a strong sense of worthiness, what she found in common was their sense of ‘Courage’. Brown reveals her participants â€Å"had the courage to be imperfect, the compassion to be kind to themselves first and then to others,† further stating â€Å"they had a connection as result of authenticity, they were willing to let go of who they thought they should be in order to be who they were,† which she theorizes you absolutely have to do in order for connection to happen.Moving on to the group of participants who struggled with worthiness, Brown stumbles on the concept of ‘vulnerability’, which she describes as the core of shame and fear, and why we struggle with vulnerability. Having to see her own therapist to sort out her ideas on vulnerability, she explains that to be seen lets us build that connection with others which often means that we may find ourselves â€Å"excruciatingly  vulnerable†. â€Å"We live in a vulnerable world† states Brown, and in order to cope with these emotions, we numb ourselves†.Brown theorizes that by numbing everything, we feel miserable and look for purpose and meaning, we feel vulnerable and then reach for something to ease our discomfort, a quick-fix, such as alcohol, drugs, or even food. Bro wn’s assumptions are summarized in her overall theory of ‘Wholeheartedness’: We must have the courage to allow ourselves to be seen even if it means we are vulnerable. To do so allows us to have compassion to connect with ourselves and others. 3. Describe any evidence given to support these assumptions. Brown explains that there is evidence of her theory of vulnerability. We are the most in-debt, obese, addicted and medicated adult cohort in US history† states Brown. She summarizes this evidence with the statements that â€Å"we make the uncertain – certain†. â€Å"There is no discourse explains Brown, no discussion, just a right or wrong answer†, which she compares to what we see in current day religion and politics. She goes on to further explain that we not only â€Å"perfect and blame†, but that we also â€Å"pretend† that what we do does not have an affect or impact on others, both in our personal lives and even the c orporate world.This is evident by such dealings as the BP Oil Spill, the recent bail-outs, recalls on retail products, etc. She draws the association of how common shame is using her own experiences, and how it contributes to our anxiety and unhappiness which all to many of us attempt to suppress with the use of medication , food, drugs or alcohol to suppress these unwanted feelings. 4. Are there points of view not considered by the speaker? Explain. Although Brown’s assumptions of human’s need for connection, our fears of shame and vulnerability are legitimate, these assumptions are based on â€Å"surfacey† feelings.Brown does not consider variables outside of our control, variables such as life experience stemming perhaps from early childhood or adolescence, witnessing or partaking in traumatic events, or any other life experience that effectively molds these feelings of unworthiness. Brown herself instructs her own therapist not to dig into her own family lif e, no â€Å"childhood sh*t†, she just wanted to touch on the subject of vulnerability so that she could â€Å"personally and professionally understand† what makes us â€Å"worthy† of connection without digging below the surface.Opening up pandora’s box would most certainly result in much grittier results. 5. State your position or perspective on the topic. I genuinely agreed with Brown’s talking points in her TED discussion, and I related to her own descriptions of her fallbacks of self-control, ie: the need to always be right or better, and her fear of shame. The manner in which Brown unfolded her findings of her dedicated research clearly illustrated her theories. Drawing together her conclusions in her concept of â€Å"wholeheartedness† was clever and purposeful.However, the subject matter was very generalized and did not reflect real-life experience as a cause of such feelings of unworthiness or vulnerability, although it was helpful in nature. I personally view the discussion more as â€Å"self-help† collection of ideas that you might find quoted in a calendar or collection of daily passages to motivate yourself that you are worthy of connection, to allow yourself to be vulnerable, to open up yourself without the hesitation of risk. 6. What are the implications or consequences of the speaker’s conclusions?Brown’s ideas are similar to what addicts are taught in rehabilitation-type settings. Addicts generally numb their feelings of unworthiness with substances such as drugs, alcohol, or food, or by actions or disruptive behaviors that allow them to release these feelings such as sex or pornography addicts and arsonists. However, once a traumatic event unfolds or an addict or even a non-addict experiences a trigger, or something that reminds them of their original feelings of unworthiness, individuals tend to fall back on their addictions or behaviors, relying even more on their numbing effects.I believe one can only tell themselves so much what they want to believe before they face what they feel to be the truth of themselves or how they view themselves. A consequence of Brown’s ideas to tell ourselves to love with our whole hearts, to allow ourselves be to be seen, and to believe we are enough, could potentially lead one to a false sense of self, an inflated idea of who they are. Generally, individuals feel unworthy for a reason, due to their upbringing or life experience. In a perfect world, Brown’s ideas would be enough to self-medicate our ill wills.

The Symptoms Of Social Anxiety Disorder - 1574 Words

About 12.1 percent of the general population has social anxiety (SAD) disorder during their lives (Kessler, Berglund, et al., 2005). SAD is the second most common form of anxiety disorder and affects 35 million people in the United States alone (Hofmann et al., 2009, Magee et al., 1996). People diagnosed with SAD have a lower quality of life, higher chance of substance abuse and greater risk of suicide (Baldwin and Buis 2004). The best and most common form of treatment for SAD is cognitive-behavioral therapy (Stangier, Schramm, Heidenreich, Berger, Clark, 2011).[b1] Social anxiety disorder is defined as an â€Å"extreme, enduring, irrational fear and avoidance of social or performance situations.† [b1] Some of the symptoms of social anxiety disorder are fear that an individual will show anxiousness in social scenarios, an immense amount of fear that causes clinical impairment or social distress and symptoms have lasted for at least 6 months. [b2] Cognitive therapy is defin ed as a â€Å"group of treatment procedures aimed at identifying and modifying faulty thought processes, attitudes and attributions and problem behaviors.[b3] † Clark and colleagues [b4] (2006) reviewed a cognitive therapy program that had real-world social scenarios included in the study. Their reasoning for doing this was to challenge patients’ negative self-concepts and thoughts in social scenarios. This style of program benefited 84% of individuals who participated[b5] . [b6] The three articles discussed inShow MoreRelatedSocial Anxiety Disorder : Symptoms And Treatments Essay1533 Words   |  7 PagesSocial Anxiety Disorder: Symptoms and Treatments The feeling of anxiety is familiar to all of us and we all experienced some anxiety and fear at least once in our life. Whether that was the first day in a new workplace, the first day in college, or before an important meeting, we felt that we were really anxious and nervous. 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Personal Statement My Core Values And My Pursuit Of A...

Introduction Through my personal and work experiences, I have had an opportunity to develop and strengthen my core values. These core values are duty, resourcefulness, change, and commitment. In this reflection paper, I will first identify my core values as I currently see them, and provide information as to their background, third define my current career goals, and lastly, explain how these core values and my pursuit of a Master s in Public Administration at DePaul University School of Service call on to my current career goals. Resourcefulness Resourcefulness is a core value I identified with. After graduating college, I moved to Greensboro, Alabama. I taught in a low-income community. The school that I taught in was financially struggling. Teachers were limited in how much they could print every month, how much paper they had at their disposal, etc. As a new teacher who just graduated college, moved over 600 miles away from home, I had nothing and I had to somehow put together an empty classroom. My resourcefulness came about when I learned to ask for things that my students in my classroom needed. I learned to put my shyness away and ask veteran teachers for supplies they had and could share. I also became more comfortable with asking individuals at fundraisers for money to support my classroom. Most importantly, I learned to set up a Donor’s Choose account to ask strangers to donate classroom materials for my students to use. Change The second core value thatShow MoreRelatedPersonal Statement : My Core Values And My Pursuit Of A Master s Public Administration At Depaul University School868 Words   |  4 PagesThrough my personal and work experiences, I have had an opportunity to develop and strengthen my core values. These core values are duty, resourcefulness, change, and commitment. In this reflection paper, I will first identify my core values as I currently see them, and provide information as to their background, third define my current career goals, and lastly, explain how these core values and my pursuit of a Master s in Public Administration at DePaul University School of Service call on to my currentRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 PagesOrganizational Behavior This page intentionally left blank Organizational Behavior EDITION 15 Stephen P. Robbins —San Diego State University Timothy A. Judge —University of Notre Dame i3iEi35Bj! Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montreal Toronto Delhi Mexico City Sao Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo Editorial Director: Sally Yagan Director of Editorial Services:Read MoreProject Mgmt296381 Words   |  1186 Pages3) 6.4.2 Estimating tools (.1.3.4) 6.3.1 Identifying resources 7.1 Activity cost estimates (.2.3.4.5) 5.1.2.4 Delphi method Chapter 6 10.5.3 Cost/schedule system (.1) 6.6 .2.1 Time performance 7.2.3.1 Cost baseline development 7.3.2.1 Earned value system (F.4) 7.3.2.4 E.V., performance status report 7.3.2.2 E.V., forecasts 7.3.2.3 EV., to complete index (EAC) 7.3.2.5 Schedule and cost variance Developing a Project Plan 4.2.2 Planning tools 6.2 Sequence activities [1.2] 6.5.1 Bar and milestone Personal Statement My Core Values And My Pursuit Of A... Introduction Through my personal and work experiences, I have had an opportunity to develop and strengthen my core values. These core values are duty, resourcefulness, change, and commitment. In this reflection paper, I will first identify my core values as I currently see them, and provide information as to their background, third define my current career goals, and lastly, explain how these core values and my pursuit of a Master s in Public Administration at DePaul University School of Service call on to my current career goals. Resourcefulness Resourcefulness is a core value I identified with. After graduating college, I moved to Greensboro, Alabama. I taught in a low-income community. The school that I taught in was financially struggling. Teachers were limited in how much they could print every month, how much paper they had at their disposal, etc. As a new teacher who just graduated college, moved over 600 miles away from home, I had nothing and I had to somehow put together an empty classroom. My resourcefulness came about when I learned to ask for things that my students in my classroom needed. I learned to put my shyness away and ask veteran teachers for supplies they had and could share. I also became more comfortable with asking individuals at fundraisers for money to support my classroom. Most importantly, I learned to set up a Donor’s Choose account to ask strangers to donate classroom materials for my students to use. Change The second core value that isShow MoreRelatedPersonal Statement : My Core Values And My Pursuit Of A Master s Public Administration At Depaul University School868 Words   |  4 PagesThrough my personal and work experiences, I have had an opportunity to develop and strengthen my core values. These core values are duty, resourcefulness, change, and commitment. In this reflection paper, I will first identify my core values as I currently see them, and provide information as to their background, third define my current career goals, and lastly, explain how these core values and my pursuit of a Master s in Public Administration at DePaul University School of Service call on to my currentRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 PagesOrganizational Behavior This page intentionally left blank Organizational Behavior EDITION 15 Stephen P. Robbins —San Diego State University Timothy A. Judge —University of Notre Dame i3iEi35Bj! Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montreal Toronto Delhi Mexico City Sao Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo Editorial Director: Sally Yagan Director of Editorial Services:Read MoreProject Mgmt296381 Words   |  1186 Pages3) 6.4.2 Estimating tools (.1.3.4) 6.3.1 Identifying resources 7.1 Activity cost estimates (.2.3.4.5) 5.1.2.4 Delphi method Chapter 6 10.5.3 Cost/schedule system (.1) 6.6 .2.1 Time performance 7.2.3.1 Cost baseline development 7.3.2.1 Earned value system (F.4) 7.3.2.4 E.V., performance status report 7.3.2.2 E.V., forecasts 7.3.2.3 EV., to complete index (EAC) 7.3.2.5 Schedule and cost variance Developing a Project Plan 4.2.2 Planning tools 6.2 Sequence activities [1.2] 6.5.1 Bar and milestone