nanoindentation techniques are widely used for the study of nanomechanical properties of thin nanocomposite coatings. theoretical concepts and practical use of nanoindentation method are summarized with reporting the applications of these tests in characterization of some particular thin nanocomposite hybrid coatings prepared by sol-gel process. the better mechanical properties can be obtained ...

Mechanical characterization of protein molecules has played a role on gaining insight into the biological functions of proteins, because some proteins perform the mechanical function. Here, we present the mesoscopic model of biological protein materials composed of protein crystals prescribed by Go potential for characterization of elastic behavior of protein materials. Specifically, we conside...

The mechanical characterization of mortars is problematic due to their sensitivity to stress concentration defects, namely pores and flaws. In this paper, data on three-point bending, Young’s modulus and fracture toughness of mortar beams are presented and discussed. Here, Weibull statistics is applied to analyse flexural strength of the developed mortar. Based on data obtained according to the...

Rib fractures are a common morbidity following automotive crashes. While the rib bones are wellcharacterized, and articular cartilage from joints such as the knee and shoulder has been extensively mechanically characterized, almost no mechanical examination has been performed of the rib-cage costal cartilage. Costal cartilage is a hyaline cartilage, like articular cartilage, but it differs from...

Introduction A Virtual Reality (VR)-based medical simulation requires accurate organ geometry, fast computation algorithms, and mechanical properties of the soft tissue. However, the material properties’ characterization has not been sufficiently investigated due to the difficulty of testing and modeling the complexities of nonlinearity and time dependency of the soft tissue. Several research g...

self-assembly, patterning, and characterization Miao Lu, Min-Woo Jang, Greg Haugstad, Stephen A. Campbell, and Tianhong Cui Department of Mechanical Engineering, University of Minnesota, 1100 Mechanical Engineering 111 Church Street S.E., Minneapolis, Minnesota 55455, USA Department of Electrical and Computer Engineering, University of Minnesota, EECS Building 200 Union Street S.E., Minneapolis...

In this study, the effects of various heat treatments on microstructure, mechanical and magnetic properties of HSLA-100 steel were evaluated. The heat treatments consisted of austenitizing at 900°C for 60 minutes, then quenching by different cooling rates via furnace, air, oil and water; and quenched specimens were aged at 600°C for one hour. Optical and field emission scanning electron m...

In this investigation, MoSx/Cr coatings were deposited by direct-current magnetron sputter onto Ck45 (AISI 1045) plain carbon steel substrates. The MoSx/Cr ratio in the coatings was controlled by sputtering the composite targets. The chemical characterization was performed using EDX (energy dispersive X-ray analysis); the structural characterization was accomplished by X-ray diffraction (XRD) s...