Rock mass strength is recognized as an important control on landscape morphology and evolution. However, the controls rock in mountainous topography remain poorly characterized, part because remains challenging to quantify at spatial scales relevant geomorphology. Here we mechanical properties of masses using subsurface S-wave velocities, Schmidt hammer hardness values, Geological Strength Inde...

Bendungan merupakan salah satu sarana multifungsi yang memiliki peranan penting bagi kehidupan manusia. Guna menjaga dan meningkatkan jaminan keamanan bendungan pengoperasiannya maka diperlukan pemeriksaan teliti (assesment) melalui penerapan metodologi test/pengujian memadai. Tujuan dari penelitian ini adalah mengetahui tingkat pelapukan kekuatan struktur beton concrete face spillway sejak din...

Tafone-like depressions have developed on the Aoshima sandstone blocks used for a masonry bridge pier in the coastal spray zone. A thin layer of partial granular disintegration was found on the surface in depressions. To evaluate quantitatively the strength of the thin weathered layer, the hardness was measured at the surface of the sandstone blocks using both an Equotip hardness tester and an ...

Abstract The stringer sheet forming process chain enables the cost-effective production of components with significantly increased stiffness for mass markets such as automotive sector. In first step, a is added to conventional by laser welding. subsequent parts are formed deep drawing operation. Previous investigations component performance focused in particular on static sheets. behavior under...