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Test method for tensile strength and tear strength of cloth

Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear

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Page 1: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear

Test method for tensile strength and tear strength

of cloth

Page 2: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear

여러가지 섬유의 강신도곡선

인장성질에 영향을 주는 요인 피륙을 구성하는 실의 특성 피륙의 조직 가공법

인장강도

Page 3: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear

측정기기 및 시험편

인장강도 시험기 직물의 인장강도 시험편

스트립법(KS K 0521) 그래브법(KS K 0520)

Page 4: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear

인열강도에 영향을 주는 요인 실의 굵기와 밀도가 같아도 조직에 따라 달라짐 조직점이 적을수록 인열강도는 커짐

인열 시 하중-신장 곡선

인열강도

같은 원사와 밀도를 가진 직물의 인장 및 인열강도(평직을 100으로 한 비교값)

Page 5: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear

시험방법

인열강도 시험편

텅법(KS K 0536) 트래피조이드법(KS K 0537)

Page 6: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear

Computation Formulas for Tensile Properties

1. Tenacity

2. Ultimate elongation(elongation at break)(%)

3. Breaking stiffness(secant modulus)(gf/denier/unit strain)

4. Toughness index(gf/denier)

5. Breaking toughness(gf/denier)

6. Yield stress(gf/denier)

7. Yield strain(dimensionless)

8. Initial Modulus(gf/denier/unit of strain)

9. Resilience(gf/denier)

Page 7: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear

Computation Formulas for Tensile Properties

1. Tenacity

2. Ultimate elongation(elongation at break)(%)

3. Breaking stiffness(secant modulus)(gf/denier/unit strain)

4. Toughness index(gf/denier)

5. Breaking toughness(gf/denier)

6. Yield stress(gf/denier)

7. Yield strain(dimensionless)

8. Initial Modulus(gf/denier/unit of strain)

9. Resilience(gf/denier)

Page 8: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear

Stress-Strain graph

Page 9: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear
Page 10: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear
Page 11: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear
Page 12: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear
Page 13: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear
Page 14: Test method for tensile strength and tear strength of clothelearning.kocw.net/contents4/document/lec/2013/Chungnam/... · 2014-01-21 · Test method for tensile strength and tear