In this paper, a finite element based simulation approach for predicting the effect of microstructure on the stresses resulting from electromigration-induced diffusion is described. The electromigration and stress-driven diffusion equation is solved coupled to the mechanical equilibrium and elastic constitutive equation, where a diffusional inelastic strain is introduced. Here, the focus is on ...

We consider some basic principles of fluid-induced lubrication at soft interfaces. In particular, we quantify how a soft substrate changes the geometry of and the forces between surfaces sliding past each other. By considering the model problem of a symmetric nonconforming contact moving tangentially to a thin elastic layer, we determine the normal force in the small and large deflection limit,...

This account shows the distribution of elastic elements in hind wings in the scarabaeid Pachnoda marginata and coccinellid Coccinella septempunctata (both Coleoptera). Occurrence of resilin, a rubber-like protein, in some mobile joints together with data on wing unfolding and flight kinematics suggest that resilin in the beetle wing has multiple functions. First, the distribution pattern of res...

The means whereby animals adapt their locomotor behavior to variation in environmental conditions is an important and neglected problem in the area of motor control. To investigate this problem, young (3-month-old) pigtailed macaques (Macaca nemestrina) were filmed leaping a fixed distance from both rigid and elastic take-off supports. Sixteen of 17 subjects exhibited substantial invariance in ...

This paper presents an extensive experimental and numerical study on the behavior of CFRP/Steel adhesively bonded double strap joints (DSJ). A total 50 DSJ specimens were tested under static tensile loading. The digital image correlation (DIC) was used to measure backface deformation. six adhesives that feature different stiffness, strength, ductility, toughness analyzed. parametric including s...

In the present work, dissimilar joints between C45 carbon steel and nickel-chromium 16NiCr6 rods were produced using rotary friction welding process. Statistical analysis based on response surface methodology (RSM), microstructural examination scanning electron microscopy with backscattered diffraction (EBSD) mechanical tests performed to investigate weld joints. The results showed that time ro...

The goal of this study was to investigate the effect glass fiber reinforced polymer (GFRP) on joints made laminated veneer lumber (LVL), through experimental data and evaluation by ANSYS finite element (FE) software. In order fabricate LVL, from poplar (Populus deltoides Bartr. ex Marsh) with 2.5 mm thickness PVA adhesive were used. T-shape out LVL two wooden dowels incorporated as well. Then G...

Joints within the Catskill Delta complex are believed to be natural hydraulic fractures and abundant indirect evidence supports this claim. The indirect evidence is based on many observations of joint surface morphology and joint spacing among other features. The Alleghanian orogeny left a unique imprint on the joint surfaces also, indicating a rotating horizontal compressive stress field. Nume...