Rupture properties of blood vessel walls measured by pressure-imposed test

Toshiro Ohashi; Syukei Sugita; Takeo Matsumoto; Kiichiro Kumagai; Hiroji Akimoto; Koichi Tabayashi; Masaaki Sato

doi:10.1299/jsmec.46.1290

Rupture properties of blood vessel walls measured by pressure-imposed test

Toshiro Ohashi, Syukei Sugita, Takeo Matsumoto, Kiichiro Kumagai, Hiroji Akimoto, Koichi Tabayashi, Masaaki Sato

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

It is expected to be clinically useful to know the mechanical properties of human aortic aneurysms in assessing the potential for aneurysm rupture. For this purpose, a newly designed experimental setup was fabricated to measure the rupture properties of blood vessel walls. A square specimen of porcine thoracic aortas is inflated by air pressure at a rate of 10 mmHg/s (≈ 1.3 MPa/s) until rupture occurs. Mean breaking stress was 1.8±0.4 MPa (mean±SD) for the specimens proximal to the heart and 2.3± 0.8 MPa for the distal specimens, which are not significantly different to those values obtained longitudinally from conventional tensile tests. Moreover, the local breaking stretch ratio in the longitudinal direction was significantly higher at the ruptured site (2.7±0.5) than at the unruptured site (2.2±0.4). This testing system for studying the rupture properties of aortic walls is expected to be applicable to aortic aneurysms. Experimental verification of the present technique for the homogeneous, isotropic material is also presented.

Original language	English
Pages (from-to)	1290-1296
Number of pages	7
Journal	JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing
Volume	46
Issue number	4
DOIs	https://doi.org/10.1299/jsmec.46.1290
Publication status	Published - 2003 Dec

Keywords

Biomechanics
Breaking stress
Fracture mechanics
Measurement
Pressure-imposed tests
Thoracic aortas

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1299/jsmec.46.1290

Fingerprint Dive into the research topics of 'Rupture properties of blood vessel walls measured by pressure-imposed test'. Together they form a unique fingerprint.

Cite this

Rupture properties of blood vessel walls measured by pressure-imposed test. / Ohashi, Toshiro; Sugita, Syukei; Matsumoto, Takeo; Kumagai, Kiichiro; Akimoto, Hiroji; Tabayashi, Koichi; Sato, Masaaki.

In: JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing, Vol. 46, No. 4, 12.2003, p. 1290-1296.

Research output: Contribution to journal › Article › peer-review

@article{5cc9a115fc4a4781a022826f6b91562b,

title = "Rupture properties of blood vessel walls measured by pressure-imposed test",

abstract = "It is expected to be clinically useful to know the mechanical properties of human aortic aneurysms in assessing the potential for aneurysm rupture. For this purpose, a newly designed experimental setup was fabricated to measure the rupture properties of blood vessel walls. A square specimen of porcine thoracic aortas is inflated by air pressure at a rate of 10 mmHg/s (≈ 1.3 MPa/s) until rupture occurs. Mean breaking stress was 1.8±0.4 MPa (mean±SD) for the specimens proximal to the heart and 2.3± 0.8 MPa for the distal specimens, which are not significantly different to those values obtained longitudinally from conventional tensile tests. Moreover, the local breaking stretch ratio in the longitudinal direction was significantly higher at the ruptured site (2.7±0.5) than at the unruptured site (2.2±0.4). This testing system for studying the rupture properties of aortic walls is expected to be applicable to aortic aneurysms. Experimental verification of the present technique for the homogeneous, isotropic material is also presented.",

keywords = "Biomechanics, Breaking stress, Fracture mechanics, Measurement, Pressure-imposed tests, Thoracic aortas",

author = "Toshiro Ohashi and Syukei Sugita and Takeo Matsumoto and Kiichiro Kumagai and Hiroji Akimoto and Koichi Tabayashi and Masaaki Sato",

year = "2003",

month = dec,

doi = "10.1299/jsmec.46.1290",

language = "English",

volume = "46",

pages = "1290--1296",

journal = "JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing",

issn = "1344-7653",

publisher = "Japan Society of Mechanical Engineers",

number = "4",

}

TY - JOUR

T1 - Rupture properties of blood vessel walls measured by pressure-imposed test

AU - Ohashi, Toshiro

AU - Sugita, Syukei

AU - Matsumoto, Takeo

AU - Kumagai, Kiichiro

AU - Akimoto, Hiroji

AU - Tabayashi, Koichi

AU - Sato, Masaaki

PY - 2003/12

Y1 - 2003/12

N2 - It is expected to be clinically useful to know the mechanical properties of human aortic aneurysms in assessing the potential for aneurysm rupture. For this purpose, a newly designed experimental setup was fabricated to measure the rupture properties of blood vessel walls. A square specimen of porcine thoracic aortas is inflated by air pressure at a rate of 10 mmHg/s (≈ 1.3 MPa/s) until rupture occurs. Mean breaking stress was 1.8±0.4 MPa (mean±SD) for the specimens proximal to the heart and 2.3± 0.8 MPa for the distal specimens, which are not significantly different to those values obtained longitudinally from conventional tensile tests. Moreover, the local breaking stretch ratio in the longitudinal direction was significantly higher at the ruptured site (2.7±0.5) than at the unruptured site (2.2±0.4). This testing system for studying the rupture properties of aortic walls is expected to be applicable to aortic aneurysms. Experimental verification of the present technique for the homogeneous, isotropic material is also presented.

AB - It is expected to be clinically useful to know the mechanical properties of human aortic aneurysms in assessing the potential for aneurysm rupture. For this purpose, a newly designed experimental setup was fabricated to measure the rupture properties of blood vessel walls. A square specimen of porcine thoracic aortas is inflated by air pressure at a rate of 10 mmHg/s (≈ 1.3 MPa/s) until rupture occurs. Mean breaking stress was 1.8±0.4 MPa (mean±SD) for the specimens proximal to the heart and 2.3± 0.8 MPa for the distal specimens, which are not significantly different to those values obtained longitudinally from conventional tensile tests. Moreover, the local breaking stretch ratio in the longitudinal direction was significantly higher at the ruptured site (2.7±0.5) than at the unruptured site (2.2±0.4). This testing system for studying the rupture properties of aortic walls is expected to be applicable to aortic aneurysms. Experimental verification of the present technique for the homogeneous, isotropic material is also presented.

KW - Biomechanics

KW - Breaking stress

KW - Fracture mechanics

KW - Measurement

KW - Pressure-imposed tests

KW - Thoracic aortas

UR - http://www.scopus.com/inward/record.url?scp=1442315518&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1442315518&partnerID=8YFLogxK

U2 - 10.1299/jsmec.46.1290

DO - 10.1299/jsmec.46.1290

M3 - Article

AN - SCOPUS:1442315518

VL - 46

SP - 1290

EP - 1296

JO - JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing

JF - JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing

SN - 1344-7653

IS - 4

ER -

Rupture properties of blood vessel walls measured by pressure-imposed test

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this