ASTM special technical publications最新文献_第2页

Influence of oversized solute additions on radiation-induced microstructure and microchemistry in austenitic stainless steel 超大溶质添加量对奥氏体不锈钢辐射诱导显微组织和微化学的影响

ASTM special technical publications Pub Date : 2004-01-01 DOI: 10.1520/STP11217S

B. H. Sencer, G. Was, L. Fournier, E. Kenik, E. Simonen, S. Bruemmer

引用次数: 0

Standards Used in Meeting Requirements for a Model Pre-Market Approval (PMA) of a Neural Guidance Conduit 用于满足神经引导导管模型上市前批准(PMA)要求的标准

ASTM special technical publications Pub Date : 2004-01-01 DOI: 10.1520/STP11646S

L. Stover, A. Hubel

引用次数: 0

Experimental and Numerical Study of Oxygen Diffusion Through a Partially Hydrated Needle-Punched Geosynthetic Clay Liner 氧在部分水化针刺土工合成粘土衬里中的扩散实验与数值研究

ASTM special technical publications Pub Date : 2004-01-01 DOI: 10.1520/STP12204S

A. Bouazza, F. Rahman

引用次数: 7

An Improved Biomechanical Testing Protocol For Evaluating Multilevel Cervical Instrumentation In A Human Cadaveric Corpectomy Model 一种改进的生物力学测试方案用于评估人类尸体椎体切除术模型中多节段颈椎内固定

ASTM special technical publications Pub Date : 2003-01-01 DOI: 10.1520/STP11142S

D. DiAngelo, K. Foley

引用次数: 8

Using semipermeable membrane devices (SPMDs) to assess the toxicity and teratogenicity of aquatic amphibian habitats 利用半透膜装置(spmd)评估水生两栖动物栖息地的毒性和致畸性

ASTM special technical publications Pub Date : 2003-01-01 DOI: 10.1520/STP11181S

C. Bridges, E. Little

引用次数: 1

Collaborative Research on Thermo-Mechanical and Isothermal Low-Cycle Fatigue Strength of Ni-Base Superalloys and Protective Coatings at Elevated Temperatures in The Society of Materials Science, Japan (JSMS) 高温下ni基高温合金和保护涂层的热-机械和等温低周疲劳强度的协同研究

ASTM special technical publications Pub Date : 2003-01-01 DOI: 10.1520/STP11434S

M. Okazaki, K. Take, K. Kakehi, Y. Yamazaki, M. Sakane, M. Arai, S. Sakurai, H. Kaneko, Y. Harada, A. Itoh, T. Okuda, I. Nonaka, K. Fujiyama, Kouichiro Nanba

引用次数: 24

Influence of Age and Gender on Utilized Coefficient of Friction during Walking at Different Speeds 年龄和性别对不同行走速度下利用摩擦系数的影响

ASTM special technical publications Pub Date : 2003-01-01 DOI: 10.1520/STP10736S

J. Burnfield, C. Powers

引用次数: 26

A Low-Cost High-Performance Alternative for Controlling a Servo-Hydraulic System for Triaxial Resilient Modulus Apparatus 一种低成本、高性能的三轴弹性模量仪伺服液压系统控制方案

ASTM special technical publications Pub Date : 2003-01-01 DOI: 10.1520/STP12527S

M. Bejarano, A. Heath, J. Harvey

{"title":"A Low-Cost High-Performance Alternative for Controlling a Servo-Hydraulic System for Triaxial Resilient Modulus Apparatus","authors":"M. Bejarano, A. Heath, J. Harvey","doi":"10.1520/STP12527S","DOIUrl":"https://doi.org/10.1520/STP12527S","url":null,"abstract":"A triaxial test apparatus for the characterization of pavement materials was designed and built at the Pavement Research Center (PRC) at the University of California, Berkeley (UCB). The system was designed for high quality testing of unbound, stabilized, and asphaltic materials. The design process included the design of the hardware and the servo-controlling systems. An important step in the design of the system was the design of the controller for the servo-hydraulic system. Alternatives for controllers of servo-hydraulic systems for waveform generation included the use of the data acquisition system along with proportional, integral, and derivative (PID) algorithms for setting the minimum and maximum loads/displacement. Software programming for these solutions was very complex with limited satisfactory consistency. Commercial ready-to-use controllers are expensive and limited to the specifications of the manufacturer. Therefore, a commercially available programmable motion controller PIC card was implemented for controlling the servo-hydraulic system. The motion controller required only one PID controller to generate repeated waveforms or monotonic loading. An available commercial test solution software compatible with the motion controller card was used to program the motion controller and data acquisition system. This capability was preferable to provide flexibility in modifying the system based on research needs. Software programming was simple. In addition, the cost of the new system was reduced by about 80 percent with respect to the ready-to-use motion controllers. The paper describes the implementation of the motion controller, the philosophy of the software program, and the success obtained with the new system. The system meets all the quality control provision of the LTTP Protocol P-46. Currently the triaxial apparatus is being use to investigate the resilient response and permanent deformation performance of typical California aggregate base and subbases.","PeriodicalId":8583,"journal":{"name":"ASTM special technical publications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76331964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Thermomechanical Fatigue Analysis of Cast Aluminum Engine Components 铸铝发动机部件的热-机械疲劳分析

ASTM special technical publications Pub Date : 2003-01-01 DOI: 10.1520/STP11438S

X. Su, M. Zubeck, J. Lasecki, H. Sehitoglu, C. Engler-Pinto, Chung-Yao Tang, J. Allison

引用次数: 13

Cyclic Behavior of A1319-T7B Under Isothermal and Non-Isothermal Conditions A1319-T7B在等温和非等温条件下的循环行为

ASTM special technical publications Pub Date : 2003-01-01 DOI: 10.1520/STP11426S

C. Engler-Pinto, H. Sehitoglu, H. Maier

引用次数: 11