نتایج جستجو برای: compressive stress

تعداد نتایج: 458295  

2001
Gang Liu Sebaek Oh

We present a micromachined, stress-induced, thermal bimorph actuator for optical purpose. Piston motions of more than 3um are demonstrated by FEM simulation. Upon the release from the substrate, the actuators lift off the substrate due to a large built-in bending moment arising from the compressive residual stress in the poly-silicon layer and tensile residual stress in the metal layer. Large d...

Journal: :Journal of the Japan Welding Society 1967

Journal: :Transactions of the Japan Society of Mechanical Engineers Series A 2009

Journal: :journal of solid mechanics 0
p.k vaishnav department of applied mathematics, indian school of mines, dhanbad-826004, india s kundu department of applied mathematics, indian school of mines, dhanbad-826004, india s.m abo-dahab department, qena faculty of science, egypt a saha department of applied mathematics, indian school of mines, dhanbad-826004, india

the present paper studies the possibility of propagation of torsional surface waves in an inhomogeneous anisotropic layer lying between two heterogeneous half-spaces (upper and lower half-space). both the half-spaces are assumed to be under compressive initial stress. the study reveals that under the assumed conditions, a torsional surface wave propagates in the medium. the dispersion relation ...

2015
Xinlei Wu Ming Yang Lijun Wu Wenxin Niu

Background. The biomechanical effect of two implants, namely, proximal femoral nail antirotation for Asia (PFNA-II) and Expert Asian Femoral Nail (A2FN), for treating subtrochanteric fracture during healing stages, is still unclear. Methods. A 3D finite element model of an intact femur was constructed and validated. The fractured and postoperative models were accordingly produced. The postopera...

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