Abstract The biaxial tension–tension cyclic loading experiments were conducted on the cruciform specimens prepared using a silane‐modified polyurethane sealant to investigate their mechanical behavior. finite element method was employed validate behavior of under conditions. It is shown that highest stress concentration in central region specimens, indicating shape design specimen suitable for tests. Additionally, effects path, mean stress, and amplitude ratcheting strain dissipated energy...

Let $(\small{\Si},g)$ be a compact Riemannian surface without boundary and $W^{1,2}(\Si)$ the usual Sobolev space. For any real number $p>1$ $\alpha\in\mathbb{R}$, we define functional $$ J_{\alpha,8\pi}(u)=\frac{1}{2}\le( \int_\Si \nabla_g u ^2dv_g-\alpha (\int_\Si ^pdv_g)^{2/p}\ri)-8\pi\log\int_\Si he^u dv_g on function space $\mathcal{H}=\le\{u\in W^{1,2}(\Si):\int_{\Si}u dv_{g}=0\ri\}$, where $h$ is positive smooth $\Si$. Denote $$\lambda_{1,p}(\Si)=\inf_{u\in \mathcal{H},\,\int_\Si ^p...

Abstract The cyclic loading experiments on HP‐172B sealant bonded tubular butt‐joints were carried out with the strain‐controlled mode, and effects of strain amplitude mean relaxation stress softening variable butt‐joint investigated. experimental results show that stress–strain response curve presents a corrugated shape under loading. occur. increase intensifies behaviors. According to observation, nonlinear viscoelastic model is proposed predict mechanical behavior loading, which considers...

The fatigue life evaluation of adhesively bonded joints has attracted more and attention with its extensive application. Here, the experiments under various loading conditions were carried out to understand stress amplitude, mean stress, cycle period, path related tubular butt-joints. experimental results showed that butt-joint decreased increase amplitude influence period on was obvious since mechanical property selected adhesive rate dependent. Meanwhile, influenced by multiaxial...

Abstract The mechanical behaviors of TB991 weld sealant under cyclic loading conditions were experimentally investigated. evolution relaxation stress, softening, and dissipated energy was evaluated with the effect strain amplitude mean strain. experimental results showed that stress–strain response curves first loading‐unloading significantly different. phenomenon stress softening occurred conditions. Furthermore, decreased rapidly during initial then steadily increase cycle number, while...

Golog Tibetan Autonomous Prefecture is located in the hinterland of Qinghai-Tibet Plateau, southeast Qinghai Province. And unique geographical, climatic and economic conditions created a local houses - Diaolou. most used materials were made stone, wood, soil, grass, rattan other natural materials. The Diaolou are assembled by flagstone to form load-bearing structure stone walls wooden. towers mainly distribute Yaertang Xiang Dengta Township which coastal Make River. Through field...

Problems with plastic windows manufacturing trade are shown in the bland signing,the lack of production equipment state data supply chain link,cannot accurately install productions multi-specifications. system based on EPC encoding would contribute to confirm lead time and costs,help collect date producing department windows. With 96 bits GID-96(96 universal identifier) coding scheme,from viewpoints installment construction,designed scheme.

<p style='text-indent:20px;'>In this paper, we establish several trace Trudinger-Moser inequalities and obtain the corresponding extremals on a compact Riemann surface <inline-formula><tex-math id="M1">\begin{document}$ ( \Sigma,g) $\end{document}</tex-math></inline-formula> with smooth boundary id="M2">\begin{document}$ \partial\Sigma $\end{document}</tex-math></inline-formula>. To be exact, let id="M3">\begin{document}$ \lambda_1(\partial\Sigma) denotes first eigenvalue of Laplace-Beltrami...

Qinghai is a multi-ethnic region, mainly living in the eastern agricultural areas Han, Hui and Tu, southwest area of animal husbandry Tibetan Mongol. In order to adapt cold, arid, windy long sunshine time climate Qinghai, people created unique style traditional vernacular dwelling, Zhuangke. This architectural form with wooden frame bearing, matching brick walls or rammed earth walls. Such buildings are mostly villagers themselves built according past experience; do not involve seismic...

The pre-stressed stainless steel wire mesh (SSWM) –mortar (M) is a laminate structure for structural strengthening and rehabilitation. Pre-stressing the key technology engineering practice. A jogged anchor proposed anchoring large diameter SSWM conveniently. flexural performances of 5 damaged RC beams strengthened by SSWM-M one referential beam were tested. experimental results indicates that has better performance in controlling crack growth, restoring capacity stiffness than small SSWM-M.