Question

three maih cnterla uhat 3. For the Mohr-Coulomb Criteria, be able to sketch the general diagram outlining the various aspects of the criteria. In shear stress-normal stress space be able to draw the Mohr's circle for uniaxial tensions, uniaxial compression, and triaxial tests. Be able to identify the shear fracture angle on the diagram and its associated angle with respect to a sketch on a test sample. Understand the correlation between M-C criteria between shear-normal stress space and principal stress space.

Answer 1

Mohy and coulomb eriar 9t emplainy a bout the shear failre Criteria occur dueto ahea YahrenU-The failure erentially byつhear, Gheme on the pokomtial filure plame occuna in a il by lpage of parhcles bat d heav shemes ot tcilure depen upon he normat According to Mohr's cle theoly, the frailure İjcaund by a Crítica0 combination of the nomnaL athen , of Mohr cineles are drawn torreapon ding to different tests ,(amied out om different samples of a drawn Cerrerpem d oil upto tailure then a cermmim tangent dawn om a taulure emu oceura on a plane on which nomel dhesses and s he dhene iepondingto the coordimaks of the mohn- columb tailure envelope tuahon ble si failure onuwelope shen 12. Nole that there can not be a Mohγ0acb onom ts tohy fhilure envelope becouse thon which e cause cannot be no malat Jheav づhon maide the 201} man Joil man 3 C.

which gets plottco above failure em beccuu talure wil ocour in tue oil man be fere we reach a akrem ombination which et plotted a bove failure envelope emvelope. Thin re preum plame. The on'entahone me then planes cam he deformined by usval Mo amalipw indainial temsian sampe repreente d by a Mohy cnle that lies belous enperience, a shear dhem which /1amalter than thee aple the filure envelope, eweny plane withm Jheav shemgth of sample. Thus te pont o fingenye ot the envelope to dhu Moh cwrch at uilure gres tle em a chue to the determinathon of the inclina hon ot the be fmally deten mined by drilune plame The arienta.thon ot the feullure plome can thu pole methed Tho Mohr- coldtlomb f failure ontenan cam he that repreunkh be vantom os Mohy- colllom re envelope T+ general egni,

sheax dren on tuu fealure plane C apparent cohesion ahres on the failure plone ma Ang le of miomal fri hon Mohr's rcles tov unian ial emion umtam て, shear, hrem shrear Worm hen hren Mohv circle fo Tnanial ->叮 All prineipal shemen are nom-Zeron C2 Cy mom hn-plane traun Cry man

"The づhear fracture arngle ho faulune erwelape CA rD shear,hergh Falun, ri Appleed man envelope hear hem of 1o) 叮2 majov principle ahem te t,u fularve plane, malen am angle of 14s-%) d egree with mojor pvinc/pol plarre of l4st .; Thus knowing tw φ value of twal, ρ。㎞hol ruptuure plane cam be idemhitied ahould be obremed that failure doe, nofoccon et on plame of mamimum shear s brem. ecause avallable sheawづhength #3 grea trv than the maninnw.maheay dhrem.