نتایج جستجو برای: low impact resistance

تعداد نتایج: 2205183  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1390

teachers beliefs have usually been left unattended in the realm of educational research in iranian context. one of those beliefs which seems to impact teachers performance in the classroom is their sense of self-efficacy, which refers to teachers belief in their ability to enhance student achievement and in bringing about positive learning outcomes. the present study aimed to investigate the pr...

Journal: :international journal of advanced design and manufacturing technology 0
sadegh rahmati j marzbanrad h.r. khalili

the impact resistance of new lightweight panel is studied. this panel consists of two thin metal layers bonded together by intermediate fiber/epoxy layers (mcm-sheets). to simulate a behavior of this kind of impact problem, explicit and implicit finite element software abaqus is used. in order to validate the finite element modeling, these results have been compared with experimental test resul...

Journal: :iranian journal of science and technology transactions of civil engineering 2015
a. nikoui a. dalvand m.k. sharbatdar a. kheyroddin

in the current study an experimental/statistical approach addressing key mechanical properties (compressive, tensile and flexural strength) and impact resistance of such new fibers with inclusion of different volume of polyphenylene sulfide (pps) fibers has been carried out on 288 specimens. results from this study revealed that compressive, tensile and flexural strength exhibit a good fit with...

This study investigated the influence of nanoclay on the impact damage resistance of glass fiber-epoxy composites under high velocity ice impact loading. Addition of 0.5 wt. % nanoclay into epoxy was shown to improve damage resistance compared to composite plates having no nanoclay platelet. The glass fiber-epoxy composites containing nanoclay brought about substantial improvement in ice impact...

Journal: :international journal of civil engineering 0
m. c. yılmaz gazi university, engineering faculty, civil engineering department, turkey ö. anıl gazi university, engineering faculty, civil engineering department, turkey b. alyavuz gazi university, engineering faculty, civil engineering department, turkey e. kantar celal bayar university, engineering faculty, civil engineering department, turkey

experiments were carried out to observe the influence of loading type on concrete beam specimens. beam specimens made of similar concrete mixture with the same geometry were tested under three point static loading and low velocity drop weight impact loading. load – displacement behavior, absorbed energy dissipation capacity, stiffnesses, failure modes of beam specimens were obtained and discuss...

ژورنال: بیهوشی و درد 2019

 Aims and background: Patients with non-specific low back pain experience disorder in back motor control and trunk muscle endurance and these disorders are associated with pain in these patients. The objective of this study was to compare the effectiveness of motor control exercises, exercise in water, and combined exercises on back motor control and trunk muscle resistance in patients with chr...

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