Hygrothermal environments can degrade anisotropic conductive adhesive (ACA) joints by weakening the shear strength of adhesive interface. In this paper, the shear strength degradation model of ACA joints under hygrothermal conditions was formulated through experimental testing and theoretical modeling. The shear strength degradation data were obtained from different hygrothermal aging tests and...

Tire recycling and reuse in North America worldwide have increased considerably, intending to reduce the harmful effects of scrap tires on environment. Accordingly, use tire derived aggregates (TDA) as backfill material civil engineering applications is rise at an unprecedented rate. However, TDA construction industry, its strength stiffness parameters properties must be evaluated. One key fact...

With the onset of global warming, environment has profoundly changed. The melting ice and slope instability were widely observed in permafrost regions Qinghai–Tibet Plateau, which destroyed infrastructure threatened people’s safety. For this study, we conducted a direct shear test, monitored field temperature, performed numerical simulation to explore mechanism Qinghai. results show that streng...

This paper presents results from drained cyclic torsional shear tests on Toyoura sand and a residual soil under dry and saturated conditions. The relationships of shear strain,   z with shear stress,   z ; normalized shear stress, z z     / ; vertical strain, z  ; and equivalent shear modulus, Geq are compared. The investigation of granular decomposition with respect to its influence o...

BACKGROUND This in vitro study is intended to compare the shear bond strength of recent self-etching primers to superficial, intermediate, and deep dentin levels. MATERIALS AND METHODS All teeth were sectioned at various levels and grouped randomly into two experimental groups and two control groups having three subgroups. The experimental groups consisted of two different dentin bonding syst...

In this work, the effect of rock bolt angle on the shear behavior of Rock Bridges is investigated using the particle flow code in two dimensions (PFC2D) for three different Rock Bridge lengths. Firstly, the calibration of PF2D is performed to reproduce the gypsum sample. Then the numerical models with the dimensions of 100 mm * 100 mm are prepared. The Rock Bridge is created in the middle of th...