نتایج جستجو برای: damage mechanism

تعداد نتایج: 772342  

Journal: :Facta universitatis - series: Electronics and Energetics 2016

Journal: :Frontiers in Materials 2021

A dual-scale model is proposed to study the effect of microstructure parameters (grain size and grain boundary fracture energy) on thermal shock damage mechanism an example alumina. At microscale, representative volume element (RVE) models generated by Voronoi tessellation are simulated obtain mechanical for macro models. macroscale, a coupled thermomechanical based finite–discrete method (FDEM...

Journal: :International Journal of Mechanical Sciences 2022

Shock tolerance is desirable for ceramic particles-reinforced metal matrix composites in many applications, where the dislocation dynamics evolution under extreme load key but still elusive. Herein, we have investigated motion and interaction shock loading of SiC/Al nanocomposites using molecular simulations. We demonstrated that plastic deformation occurs at an impact velocity (0.5 km/s) lower...

حسن نحوی, , رضا عارفی, , عباس همت, ,

The objective of this research was to design and develope a Pick and Position system to displace spherical-shaped fruits, with minimum damage to flesh, from one specific place to another. A mechanical gripper (end-effector) suitable for grasping spherical-shaped fruits with 5-9 cm in diameter was designed and developed. The primary goal of the gripper design was to take and release the fruit wi...

ژورنال: علوم آب و خاک 2006
حسن نحوی, , رضا عارفی, , عباس همت, ,

The objective of this research was to design and develope a Pick and Position system to displace spherical-shaped fruits, with minimum damage to flesh, from one specific place to another. A mechanical gripper (end-effector) suitable for grasping spherical-shaped fruits with 5-9 cm in diameter was designed and developed. The primary goal of the gripper design was to take and release the fruit wi...

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