نتایج جستجو برای: shear layer stiffness

تعداد نتایج: 387363  

Stiffness matrix of the four-node quadrilateral plane stress element is decomposed into normal and shear components. A computer program is developed to obtain the straining modes using adequate and reduced integration. Then a solution for the problem of mixing straining modes is found. Accuracy of the computer program is validated by a closed-form stiffness matrix, derived for the plane rectang...

Journal: :journal of computational applied mechanics 0
ali ghorbanpour arani professor, faculty of mechanical engineering, university of kashan, kashan, iran abdolhosein fereidoon professor, department of mechanical engineering, faculty of engineering, university of semnan, semnan, iran reza kolahchi ph.d. candidate, faculty of mechanical engineering, university of kashan, kashan, iran

the nonlocal nonlinear buckling of a double layer graphene sheet (dlgs) covered by zinc oxide (zno) piezoelectric layers is investigated in this study. the surrounding circumstances of the system are considered as a pasternak foundation including spring constants and a shear layer. graphene sheets are subjected to longitudinal magnetic field and biaxial forces. on the other hand, the zno piezoe...

Journal: :Acupuncture in medicine : journal of the British Medical Acupuncture Society 2017
Mabel Qi He Leow Shu Li Cui Taige Cao Shian Chao Tay Chin Chin Ooi

Acupunct Med Month 2017 Vol 0 No 0 Figure 1 Shear wave elastography of the gastrocnemius muscle in a longitudinal plane. Rectangular field of view demonstrating good quality shear-wave elastogram as indicated by homogeneously distributed blue colour-coded muscle (A) and evenly spaced propagation waves (B). Quantitative analysis of gastrocnemius muscle stiffness was achieved by placing the small...

The structural analysis of an infinite unsymmetric laminated composite Timoshenko beam over Pasternak viscoelastic foundation under moving load is studied. The beam is subjected to a travelling concentrated load. Closed form steady state solutions, based on the first-order shear deformation theory (FSDT) are developed. In this analysis, the effect of bend-twist coupling is also evaluated. Selec...

Journal: :Journal of physics 2023

Abstract Multi-layered composite shells are extensively used in many industrial fields since they have superior performance applications. As load-carrying components, buckling failure is one of the most common modes multi-layered shells. Hence, layup design based on optimal factors widely concerned, where lamination parameters commonly representation stiffness. However, formulations laminate st...

Journal: :Journal of the American College of Cardiology 2011
Mathieu Pernot Mathieu Couade Philippe Mateo Bertrand Crozatier Rodolphe Fischmeister Mickaël Tanter

OBJECTIVES The goal of this study was to assess whether myocardial stiffness could be measured by shear wave imaging (SWI) and whether myocardial stiffness accurately quantified myocardial function. BACKGROUND SWI is a novel ultrasound-based technique for quantitative, local, and noninvasive mapping of soft tissue elastic properties. METHODS SWI was performed in Langendorff perfused isolate...

2000
C. C. HABEGER

Experimental evidence for a correlation between paperboard edgewise compressive strength and the product of the in-plane normal stiffness and out-of-plane shear stiffness is presented. A mathematical theory, which describes compressive failure as interlaminae shear failure due to prebuckling bending of an initially curved "critical" lamina, is developed. The theory is in accord with failure ana...

M.R. Maheri and A Rangbaran, S. Roushanbin,

There are a number of parameters influencing the dynamic and seismic response of bridges. Of these, two important parameters warranting special notice include: the properties of the neoperenes in the state of connection between girders and columns and the shear stiffness of underlying soil in the level of bridge substructure’s connectivity to the ground. In this paper, the effects of these tw...

2010
S. S. Gupta R. C. Batra

We determine the basal plane stiffness and Poisson’s ratio of single layer graphene sheets (SLGSs) in armchair and zigzag directions by using molecular mechanics simulations of their uniaxial tensile deformations with the MM3 potential, and of their axial and bending vibrations. Both approaches give the basal plane stiffness equal to ∼340 N/m which agrees well with that reported in the literatu...

2016
Renu Mishra A. K. Dwivedi

Shear wall is one of the most commonly used lateral load resisting in high rise building. Shear wall has high in plane stiffness and strength which can be used to simultaneously resist large horizontal load and support gravity load. The objective of the present study is to study the behavior of building frame in the lateral load analysis of shear wall-frame structures; a fundamental goal is to ...

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