Menard pressumeter
Menard pressumeter
(OP)
Hi,
it is not clear to me why it is suggested to derive the Young modulus (Ey) from the pressumeter (Menard) modulus (Em) by dividing the latter by one reological coefficient (alfa). My question arises from the fact that Em is already calculated considering only the elastic deformation occurred during the pressumeter test.
I imagine that a correction could be required for different stress path, but why a reological factor is involved?
Thank you for your comments
it is not clear to me why it is suggested to derive the Young modulus (Ey) from the pressumeter (Menard) modulus (Em) by dividing the latter by one reological coefficient (alfa). My question arises from the fact that Em is already calculated considering only the elastic deformation occurred during the pressumeter test.
I imagine that a correction could be required for different stress path, but why a reological factor is involved?
Thank you for your comments





RE: Menard pressumeter
I believe the alpha factor you are describing is a combination of three effects that combine to force an adjustment to obtain an elastic modulus from the PMT modulus. The first is stress path, as you mentioned. The second is that the PMT modulus is somewhere between a compressive modulus and a tensile modulus. The third effect is due to the strain levels over which the PMT test is measured.
There is a lengthy discussion of this in Baguelin's (1978) book on the PMT in Chapter 6.
RE: Menard pressumeter
I agree with your evaluation. My curiosity was mainly oriented to the fact that the term "reological" was involved in the correction factor: in my opinion this choice is not so logical..
Kind Regards
RE: Menard pressumeter
RE: Menard pressumeter
RE: Menard pressumeter