High-strength steel is currently one of the main material choices for creating lightw eight automobiles. To realize lighter wheels that can comply with harsh fatigue requirements,sufficient know ledge of the relevant ...High-strength steel is currently one of the main material choices for creating lightw eight automobiles. To realize lighter wheels that can comply with harsh fatigue requirements,sufficient know ledge of the relevant material fatigue properties is required. Fatigue tests were conducted on Baosteel＇s 600 M Pa level dual-phase steel DP600,which is a typical high-strength hot-rolled steel for steel wheel,and on 550 M Pa level HR60. Whler（ S-N） fatigue curves were obtained for both steels,and the measured stress fatigue limits were 414 and 329 M Pa for the HR60 and the DP600,respectively.展开更多
The present study applies ＂Textual Patterns＂ like ＂general-specific＂ and ＂claim-counterclaim＂ to explore discourse coherence in Chinese students＇ English writing. The study confirms the function of the textual ...The present study applies ＂Textual Patterns＂ like ＂general-specific＂ and ＂claim-counterclaim＂ to explore discourse coherence in Chinese students＇ English writing. The study confirms the function of the textual patterns as macro-structures for discourse interpretation and production, and proves textual patterns as effective tools in identifying and solving problems with discourse coherence in Chinese EFL （English as a Foreign Language） learners＇ writing.展开更多
The paper presents a computational model for elastic waves in a structured weld adjacent to the free surface of an elastic solid. The main emphasis is on the interaction of waves with the micro-structure of the weld. ...The paper presents a computational model for elastic waves in a structured weld adjacent to the free surface of an elastic solid. The main emphasis is on the interaction of waves with the micro-structure of the weld. Effects of localisation and channeling of waves are addressed. A model of a grain structure within the weld is also considered.展开更多
文摘High-strength steel is currently one of the main material choices for creating lightw eight automobiles. To realize lighter wheels that can comply with harsh fatigue requirements,sufficient know ledge of the relevant material fatigue properties is required. Fatigue tests were conducted on Baosteel＇s 600 M Pa level dual-phase steel DP600,which is a typical high-strength hot-rolled steel for steel wheel,and on 550 M Pa level HR60. Whler（ S-N） fatigue curves were obtained for both steels,and the measured stress fatigue limits were 414 and 329 M Pa for the HR60 and the DP600,respectively.
文摘The present study applies ＂Textual Patterns＂ like ＂general-specific＂ and ＂claim-counterclaim＂ to explore discourse coherence in Chinese students＇ English writing. The study confirms the function of the textual patterns as macro-structures for discourse interpretation and production, and proves textual patterns as effective tools in identifying and solving problems with discourse coherence in Chinese EFL （English as a Foreign Language） learners＇ writing.
基金supported by a scholarship funded by Serco Technical Assurance Services
文摘The paper presents a computational model for elastic waves in a structured weld adjacent to the free surface of an elastic solid. The main emphasis is on the interaction of waves with the micro-structure of the weld. Effects of localisation and channeling of waves are addressed. A model of a grain structure within the weld is also considered.
