نتایج جستجو برای: tension stress

تعداد نتایج: 492325  

2016
Qingdong Zhang Yuanxiao Su Liyuan Zhang Jia Bi Jiang Luo

For the deficiencies of traditional stress detection methods for steel strips in industrial production, this paper proposes a non-contact stress detection scheme based on the magnetoelastic effect. The theoretical model of the transmission-type stress detection is established, in which the output voltage and the tested stress obey a linear relation. Then, a stress detection device is built for ...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2002
H Gregersen O H Gilja T Hausken A Heimdal C Gao K Matre S Ødegaard A Berstad

The aims of this study were to investigate gastric antral geometry and stress-strain properties by using transabdominal ultrasound scanning during volume-controlled distensions in the human gastric antrum. Seven healthy volunteers underwent stepwise inflation of a bag located in the antrum with volumes up to 60 ml. The stretch ratio and Cauchy stress and strain were calculated from measurements...

Journal: :The International Journal of Advanced Manufacturing Technology 2022

Abstract This study develops a new phenomenological constitutive model to capture the unique evolving cyclic elastoplastic behaviours of hexagonal close-packed (HCP) sheet metals. is developed by adopting concepts multiple-yield surface approaches. Four deformation modes, including Monotonic Compression (MC), Tension (MT), Reverse (RC), and (RT), are considered represent hardening evolution mat...

2015
Mijo Simunovic Gregory A. Voth

Proteins containing a Bin/Amphiphysin/Rvs (BAR) domain regulate membrane curvature in the cell. Recent simulations have revealed that BAR proteins assemble into linear aggregates, strongly affecting membrane curvature and its in-plane stress profile. Here, we explore the opposite question: do mechanical properties of the membrane impact protein association? By using coarse-grained molecular dyn...

Journal: :International journal of cosmetic science 2013
J Lee H J Kwon

Many studies have presented stress-strain relationship of human hair, but most of them have been based on an engineering stress-strain curve, which is not a true representation of stress-strain behaviour. In this study, a more accurate 'true' stress-strain curve of human hair was determined by applying optical techniques to the images of the hair deformed under tension. This was achieved by app...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2003
David H Pashley Kelli A Agee John C Wataha Frederick Rueggeberg Laura Ceballos Kousuke Itou Masahiro Yoshiyama Ricardo M Carvalho Franklin R Tay

OBJECTIVES To evaluate the viscoelastic properties of demineralized dentin matrix. Stress-relaxation studies were done on matrices in tension and strain elongation or creep studies were done in both tension and compression. METHODS Mid-coronal dentin disks were prepared from extracted unerupted human third molars. Disks were 0.5 mm thick for stress-relaxation or tensile creep experiments and ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی خودرو 1385

لیزرهای co2 و nd: yag به علت قابلیت های عملکردی عالی و کیفیت جوش بالا بطور گسترده در صنایع خودرو سازی مورد استفاده قرار می گیرند. پرتو لیزر می تواند با قطر بسیار کم و چگالی بسیار بالا به سطح فلز تابانیده شود. در این حالت به سرعت فلز را تبخیر کرده و باعث ایجاد کی هول می شود که عمق نفوذ بالایی را به همراه دارد. شبیه سازی انواع فرایندهای جوش برای سال ها یکی از موضوعات اصلی و مورد علاقه در زمینه تح...

Journal: :nursing and midwifery studies 0
abdollah omidi department of clinical psychology, kashan university of medical sciences, kashan, ir iran fatemeh zargar department of clinical psychology, kashan university of medical sciences, kashan, ir iran; department of clinical psychology, kashan university of medical sciences, kashan, ir iran. tel: +98-9132083174, fax: +98-3615550021

background programs to improve the pain and health status in illnesses with pain such as headache are still in their infancy. mindfulness-based stress reduction (mbsr) is a new psychotherapy that appears to be effective in treating chronic pain. objectives this study evaluated efficacy of mbsr in improving pain severity and mindful awareness in patients with tension headache. conclusions mbsr c...

2013
G. Caprino

A recent two-parameter fatigue model, aimed at the prediction of the fatigue behaviour of composite materials, was applied to fatigue results available in the literature, concerning graphite/epoxy laminates subjected to tension-compression loadings. It was found that the model, successfully applied in the case of tension-tension and compression-compression fatigue, also works when the sign of s...

2014
Marie Versaevel Jean-Baptiste Braquenier Maryam Riaz Thomas Grevesse Joséphine Lantoine Sylvain Gabriele

Increasing evidences show that the actin cytoskeleton is a key parameter of the nuclear remodeling process in response to the modifications of cellular morphology. However, detailed information on the interaction between the actin cytoskeleton and the nuclear lamina was still lacking. We addressed this question by constraining endothelial cells on rectangular fibronectin-coated micropatterns an...

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