Fatigue Test 疲勞測試
疲勞測試有助于確定材料承受周期性疲勞負(fù)荷條件的能力。根據(jù)設(shè)計,材料的選擇是為了滿足或超過疲勞測試應(yīng)用中預(yù)期的服務(wù)負(fù)荷。循環(huán)疲勞試驗產(chǎn)生反復(fù)的加載和卸載,包括拉伸、壓縮、彎曲、扭轉(zhuǎn)或這些應(yīng)力的組合。疲勞試驗通常是在拉伸-拉伸、壓縮-壓縮和拉伸-壓縮中加載,然后反向加載。
通常情況下,疲勞測試的目的是確定材料在循環(huán)載荷下的預(yù)期壽命,然而,疲勞強(qiáng)度和抗裂性也是通常尋求的數(shù)值。材料的疲勞壽命是指材料在單一負(fù)載方案下可承受的循環(huán)總數(shù)。疲勞試驗也被用來確定一個樣品在特定的循環(huán)次數(shù)下所能承受的最大負(fù)荷。所有這些特性在材料受到波動而非恒定力的任何行業(yè)中都是極其重要的。
常見的疲勞測試類型
• 牙科種植體疲勞測試
• 聚合物基體復(fù)合材料疲勞測試
• 低溫下的疲勞測試
• 金屬復(fù)合材料的疲勞測試
• 陶瓷復(fù)合材料的疲勞測試
• 金屬的高循環(huán)疲勞(HCF)高應(yīng)變率
• 硅橡膠的高伸長率拉伸和疲勞測試
• 蜂窩狀復(fù)合材料疲勞測試
• 高溫下金屬的低循環(huán)疲勞測試
• 金屬鏈靜態(tài)和疲勞測試應(yīng)用
• 橡膠和彈性體疲勞測試機(jī)
• 不銹鋼疲勞低溫試驗
• 橡膠和彈性體動態(tài)振動隔離器測試
• 水壓式疲勞測試系統(tǒng)
常見的疲勞測試標(biāo)準(zhǔn)
• ASTM C1368 Slow Crack Growth Parameters of Advanced Ceramics by Constant Stress-Rate Strength Testing at Ambient Temperature
• ASTM C394 Test Method for Shear Fatigue of Sandwich Core Materials
• ASTM D3479 Test Method for Tension-Tension Fatigue of Polymer Matrix Composite Materials
• ASTM D7774 Test Method for Flexural Fatigue Properties of Plastics
• ASTM E2207 Standard Practice for Strain-Controlled Axial-Torsional Fatigue Testing with Thin-Walled Tubular Specimens
• ASTM E2368 Standard Practice for Strain Controlled Thermomechanical Fatigue Testing
• ASTM E2714 Standard Test Method for Creep-Fatigue Testing
• ASTM E466 Standard Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials
• ASTM E467 Standard Practice for Verification of Constant Amplitude Dynamic Forces in an Axial Fatigue Testing System
• ASTM E606 Standard Test Method for Strain-Controlled Fatigue Testing
• ASTM E647 Standard Test Method for Measurement of Fatigue Crack Growth Rates
• ISO 14801 Dentistry – Implants – Dynamic loading test for endosseous dental implants
• ISO 15024 Fibre-reinforced plastic composites – Determination of Mode I interlaminar fracture toughness, GIC, for unidirectionally reinforced materials
• ISO 7206 Hip Implants Tests
• NASM 1312-11 Tension Fatigue Test Procedure for Aeronautical Fasteners