0020-7683/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.ijsolstr.2010.07.010 * Corresponding author. Tel.: +1 617 386 3325. E-mail address: [email protected] (M. Luo). Advanced High Strength Steels (AHSS) are increasingly used in automotive industry due to their superior strength and substantial weight advantage. However, their compromised ductility gives rise to numerous manufacturing is...

in this paper, a simple and efficient method for modeling and solving the equations of a rotor with any number of disks, bearings and mass unbalances is presented using the assumed modes method. this model consists of a continuous shaft, arbitrary number of mass unbalances in any axial location and phase angle, and any number of rigid disks and bearings. this arrangement is extensively used in ...

To overcome the disadvantages of computer-aided design/computer-aided manufacturing (CAD/CAM) processed indirect restorations using glass-ceramics and other ceramics, resin nano ceramic, which has high strength and wear resistance with improved polish retention and optical properties, was introduced. The purpose of this study was to evaluate the shear bond strength and fracture pattern of indir...

Despite the increasing interest and subsequent published literature on hip resurfacing arthroplasty, little is known about the prevalence of its complications and in particular the less common modes of failure. The aim of this study was to identify the prevalence of failure of hip resurfacing arthroplasty and to analyse the reasons for it. From a multi-surgeon series (141 surgeons) of 5000 Birm...

Composite laminates have complex failure modes. In order to investigate the evolution of in composite laminates, this paper performed an experimental study on four with different layups using acoustic emission (AE) technique. Two kinds defects are imposed including a hole and crack center. Tensile bending tests defective real-time AE signals collected. By analyzing spectrograms obtained integra...

The purpose of this study was to investigate the fracture strength endodontically treated human maxillary premolars (ETP) restored with posts and metal ceramic (MC) or monolithic zirconia (MZ) crowns. Sixty ETP were randomly divided into 3 groups. Teeth in control group (C) received a resin filling. MC prefabricated posts, composite cores crowns while MZ glass-fiber Half specimens loaded at 135...