نتایج جستجو برای: rotary draw bending
تعداد نتایج: 75390 فیلتر نتایج به سال:
Bi-layer metallic tube (BMT) plays an extremely crucial role in engineering applications, with rotary draw bending (RDB) the high-precision processing can be achieved, however, product will further springback. Due to complex structure of BMT and high cost dataset acquisition, existing methods based on mechanism research machine learning cannot meet requirements springback prediction. Based prel...
Out-of-plane and in-plane free vibrations of angle-ply and cross-ply laminated composite beams with different boundary conditions are studied. The effect of fiber angle on out-of-plane bending, torsional, in-plane bending, and axial natural frequencies are investigated separately. The beam is modeled and analyzed by the finite element method (FEM). The finite element software package ANSYS is u...
The rotary bending fatigue properties of medical-grade Nitinol wires were investigated under conditions of 0.5-10% strain amplitudes to a maximum of 10(7) cycles. The results from this study provide insight into the behavior of Nitinol under fully reversed (εmin/εmax=-1) fatigue conditions for three compositions, two surface conditions and three test temperatures. For pseudoelastic conditions t...
A comparison of transportation and time of canal preparation with stainless steel hand instruments and Ni-Ti rotary systems (In – Vitro) Dr. MR. Sharifian* - Dr. MH. Nekoofar* - Dr. P. Motahari** - Dr. A. Tavakoli*** *-Assistant Professor of Endodontics Dept. – Faculty of Dentistry – Tehran University of Medical Sciences. **- Assistant Professor of Oral and Maxillofacial Pathology Dept. – Facul...
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