TY - JOUR
T1 - The use of critical stress intensity factor to quantify "hardness" and "crunchiness" objectively
AU - Vincent, J F V
AU - Saunders, D E J
AU - Beyts, P
N1 - ID number: ISI:000176925700005
PY - 2002
Y1 - 2002
N2 - A simple test from materials science, in which a notched beam is bent so that the notch increases in length due to the propagation of a crack, allows determination of a parameter called the Critical Stress Intensity Factor in Mode I fracture, K-IC, by means of which the conditions under which the crack will propagate can be quantified. This is shown to track sensory hardness of several apples, carrot, celery and cucumber with remarkable precision, a result predicted by theoretical analysis due to Lucas et al. (2002). Hardness and crunchiness are shown to be indistinguishable and therefore must be identical. Therefore, a mechanical test can reliably replace a sensory test resulting in quicker, cheaper and more accurate estimate of a sensory parameter.
AB - A simple test from materials science, in which a notched beam is bent so that the notch increases in length due to the propagation of a crack, allows determination of a parameter called the Critical Stress Intensity Factor in Mode I fracture, K-IC, by means of which the conditions under which the crack will propagate can be quantified. This is shown to track sensory hardness of several apples, carrot, celery and cucumber with remarkable precision, a result predicted by theoretical analysis due to Lucas et al. (2002). Hardness and crunchiness are shown to be indistinguishable and therefore must be identical. Therefore, a mechanical test can reliably replace a sensory test resulting in quicker, cheaper and more accurate estimate of a sensory parameter.
UR - https://www.scopus.com/pages/publications/0036057332
M3 - Article
SN - 0022-4901
VL - 33
SP - 149
EP - 159
JO - Journal of Texture Studies
JF - Journal of Texture Studies
IS - 2
ER -