نتایج جستجو برای: interlaminar peel and shear stress
تعداد نتایج: 16915917 فیلتر نتایج به سال:
Matrix metalloproteinase (MMP)-1, 2, with their endogenous inhibitors, tissue inhibitor of metalloproteinase (TIMP)-1, 2 are critical for extracellular matrix remodeling in human periodontal ligament (PDL) and their expression are sensitive to mechanical stresses. Shear stress as the main type of mechanical stress in tooth movement is involved in matrix turnover. However, how shear stress regul...
The effects of joint geometry parameters, such as adherend thickness (1.76, 3.52 mm), width (10, 20, 30 and overlap length 20 on the behavior single-lap joints (SLJs) under tensile loading are investigated in this study. Peak force, stiffness, shear stress, normal stress properties. SLJs manufactured with carbon fiber composite adherends two different types adhesives, polyurethane epoxy, which ...
This study aimed to investigate the suitability of interlaminar shear (ILS) testing method for veneer-based composites. The ILS is an established composite materials as a qualitative evaluation adhesion within composite. applicability this veneer based composites enables simple statement on individual layers. complements existing wood-based material tests that focus bonding, using significantly...
Objective(s): Cucurbita moschata Duchesne (pumpkin) is a well-known plant with several pharmacological effects. The aim of the present study was to assess burn wound healing activity of C. moschata peel extract (CE). Also, standardized CE was assessed for antioxidant activity and antibacterial effects against major pathogens of burns. Materials and Methods: Healing properties of topical prepara...
effects of hall current, ion-slip and coriolis force on unsteady mhd couette-hartmann flow of a viscous incompressible electrically conducting fluid through a porous medium bounded by porous plates in the presence of a uniform transverse magnetic field which is either fixed relative to the fluid or to the moving porous plate is investigated using laplace transform technique. the expressions for...
due to the existence of fibrous materials such as plastic fragments, the strength anisotropy of municipal solid waste (msw) materials is the main source of differences between their mechanical response in direct shear and triaxial apparatus. as an extension of earlier research on the mechanical behavior of msw using a large traixail apparatus, results presented in shariatmadari et al. [1] and k...
The novelty of this study is presentation of an exact solution for prediction of postbuckling behavior of shear deformable micro- and nano-scale beams based on modified couple stress theory and using principle of minimum potential energy. Timoshenko and Reddy-Levinson beam theories are applied to consider the shear deformation effect and Von Karman nonlinear kinematics is used to describe the n...
C LINICAL BLEEDING or thrombosis results from a disturbance in the balance between a complex network of procoagulant and anticoagulant factors. This network involves three primary interactions, first described by the eminent pathologist Rudolph Virchow during the previous century, between blood (soluble and cellular constituents), the blood vessel (including fixed and dynamic responses), and bl...
In this paper, a general solution for torsion of hollow cylinders made of functionally graded materials (FGM) was investigated. The problem was formulated in terms of Prandtl’s stress and, in general, the shear stress and angle of twist were derived. Variations in the material properties such as Young’s modulus and Poisson’s ratio might be arbitrary functions of the radial coordinate. Various m...
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