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材料力学和弹性力学的基本规律之一。由R.胡克于1678年提出而得名。胡克定律的内容为：在材料的线弹性范围内，固体的单向拉伸变形与所受的外力成正比；也可表述为：在应力低于比例极限的情况下，固体中的应力σ与应变ε成正比，即σ＝Εε，式中E为常数，称为弹性模量或杨氏模量。把胡克定律推广应用于三向应力和应变状态，则可得到广义胡克定律。胡克定律为弹性力学的发展奠定了基础。
两个量之间的关系：胡克定律的表达式为F＝-kx或△F=-kΔx，其中k是常数，是物体的劲度（倔强）系数。在国际单位制中，F的单位是牛，x的单位是米，它是形变量（弹性形变），k的单位是牛／米。倔强系数在数值上等于弹簧伸长（或缩短）单位长度时的弹力。
它是由英国力学家胡克(Robert Hooke, 1635-1703) 于1678年发现的,实际上早于他1500年前,东汉的经学家和教育家郑玄(公元127-200)为《考工记·马人》一文的“量其力,有三钧”一句作注解中写到:“假设弓力胜三石,引之中三尺,驰其弦,以绳缓擐之,每加物一石,则张一尺。”以正确地提示了力与形变成正比的关系,郑玄的发现要比胡克要早一千五百年.因此胡克定律应称之为“郑玄——胡克定律
One of the basic rules of material mechanics and elastic mechanics. Proposed by Hooke R. in 1678 and named. Hooke's law of the content is: in the linear elastic range of the material, the tensile deformation of solids and the external force is proportional to; also can be expressed as:the stress below the proportional limit cases, solid in the stress and strain is proportional to, i.e.σ = epsilon epsilon, where E is constant, called the elastic modulus or young's modulus. The application of Hooke's law in three to the stress and strain state, can be generalized Hooke law. It lays the foundation for the development of Hooke's law of elasticity
The relationship between the two quantities: the expression of Hooke's law for the F = -kx and △ F=-k △ x, where k is a constant, is the object's stiffness coefficient (Jue Qiang). In the international system of units, F units are cattle, X is measured in meters, it is the deformation(elastic deformation), K unit is a cow / m. Stubborn coefficient equal to spring elongation in value (or shorten) per unit length of elastic.
It was founded by the British scientists Hooke (Robert Hooke, 1635-1703) found in 1678,actually predates him before 1500, the scientist and educator Zheng Xuan in the Eastern Han Dynasty (127-200 AD) the power to "Kao Gong Ji, Ma," the "three Jun," one comment read"hypothesis: the bow - three stone, the three ruler, following the string, to rope slowly pass through, each with a stone, is a ruler." In order to correctly the force and form into aproportional relationship, Zheng Xuan found one thousand five hundred years earlier thanHooke. So Hooke's law should be called "Zheng Xuan -- Hooke's law
One of the basic rules of material mechanics and elastic mechanics. Proposed by Hooke R. in 1678 and named. Hooke's law of the content is: in the linear elastic range of the material, the tensile deformation of solids and the external force is proportional to; also can be expressed as: the stress below the proportional limit cases, solid in the stress and strain is proportional to, i.e. σ = epsilon epsilon, where E is constant, called the elastic modulus or young's modulus. The application of Hooke's law in three to the stress and strain state, can be generalized Hooke law. It lays the foundation for the development of Hooke's law of elasticity.
The relationship between the two quantities: the expression of Hooke's law for the F = -kx and △ F=-k △ x, where k is a constant, is the object's stiffness coefficient (Jue Qiang). In the international system of units, F units are cattle, X is measured in meters, it is the deformation (elastic deformation), K unit is a cow / m. Stubborn coefficient equal to spring elongation in value (or shorten) per unit length of elastic.
It was founded by the British scientists Hooke (Robert Hooke, 1635-1703) found in 1678, actually predates him before 1500, the scientist and educator Zheng Xuan in the Eastern Han Dynasty (127-200 AD) the power to "Kao Gong Ji, Ma," the "three Jun," one comment read "hypothesis: the bow - three stone, the three ruler, following the string, to rope slowly pass through, each with a stone, is a ruler." In order to correctly the force and form into a proportional relationship, Zheng Xuan found one thousand five hundred years earlier than Hooke. So Hooke's law should be called "Zheng Xuan -- Hooke's law
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