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82
5
0
1,610
S
EM
−
=
0,5MPa
α
τ≅
5
0,3 10 MPa≈⋅
95%≈ .
-
–
E
M
W
M
a priori
0
2
log 2,9,
3
2
log 6.0,
3
=−
=−
(18.10)
5
0
2,2 10
S
E
M
−
=⋅
5
2,2 10 MPa
−
α
τ= ⋅
5
0,3 0,6 10 MPaµ= − ⋅ ,
ES
MM
=
0,66 1,32 MPa≤τ≤
82 ES = 1,610 −5 M 0 hldm^Z kj_^g__ kgbfZ_fh_ gZijy`_gb_ τα ≅ 0,5MPa ijb kj_^g_c iehlghklb \ h[eZklb bklhqgbdZ ≈ 0,3 ⋅ 105 MPa k lhqghklvx ≈ 95% . Kj_^g__ agZq_gb_ ihemqZ_fh_ ba khhlghr_gby ]ml_g[_j]Z-Jbol_jZ jZ\gh FjZ Z jZa[jhk agZq_gbc \ bgl_j\Ze_ – FjZ Wfibjbq_ kdb_ nhjfmeu b]ghjbjmxl wlhl jZa[jhk b g_ fh]ml [ulv bkihevah\Zgu ^ey hij_^_e_gby wg_j]bb <_ebqbgu kgbfZ_fuo gZijy`_gbc k mq_lhf jZa[jhkZ agZq_gbc oZ jZdl_jbamxl nbabq_kdb jZaebqgu_ iZjZf_lju \kiZju\Zgby \ hqZ]_ a_fe_ ljyk_gby \ qZklghklb khhlghr_gb_ f_`^m wg_j]b_c b kgbfZ_fufb gZ ijy`_gbyfb hij_^_ey_l lbi nmgdpbb \kiZju\Zgby f_oZgbaf hqZ]Z gZ ijy`_gby \ eblhkn_j_ b l_dlhgbdm j_]bhgZ AZf_qZgb_ Ohly wg_j]_lbq_kdZy fZ]gblm^Z lZd`_ dZd fhf_glgZy fh]ml [ulv bkihevah\Zgu ^ey hp_gdb jZaf_jh\ bklhqgbdZ ih k\h_fm nbabq_kdhfm kfukem hgb g_ wd\b\Ze_glgu M E ihemqZ_lky ba ki_dljZ kdhjhklb kf_s_ gby fhsghklb b hibku\Z_l k_ckfbq_kdbc ihl_gpbZe kj_^u M W hij_^_ ey_lky ih gbadhqZklhlghc Zkbfilhl_ ki_dljZ kf_s_gbc b hibku\Z_l klZ lbq_kdh_ kf_s_gb_ \ hqZ]_ Ihkdhevdm dZ`^Zy ba gbo hibku\Z_l jZaebq gu_ khklhygby a priori hgb g_ ^he`gu [ulv jZ\gufb Mkeh\b_ bo jZ\_gkl \Z ke_^m_l ba hij_^_eyxsbo khhlghr_gbc 2 0 ( = log (6 − 2,9, 3 (18.10) 2 0 : = log 0 0 − 6.0, 3 hlkx^Z ES = 2, 2 ⋅10 −5 b kgbfZ_fu_ gZijy`_gby ^he`gu [ulv ihjy^dZ M0 τα = 2, 2 ⋅ 10 −5 MPa >ey a_fe_ljyk_gbc \[ebab a_fghc ih\_joghklb µ = 0,3 − 0,6 ⋅105 MPa , lh]^Z M E = M S lhevdh ^ey a_fe_ljyk_gbc k dZ`msbfb kgbfZ_fufb gZ ijy`_gbyfb \ ^bZiZahg_ 0,66 ≤ τ ≤ 1,32 MPa Wlh hq_gv madbc ^bZiZahg kgbfZ_fuo gZijy`_gbc \ h[s_f jZa[jhk_ hl ^h FjZ < kj_^g_f \gmljbieblh\u_ a_fe_ljyk_gby oZjZdl_jbamxlky [he__ \ukhdbfb kgbfZ_ fufb gZijy`_gbyfb FjZ q_f f_`ieblh\u_ FjZ Wg_j]_lbq_kdb_ fZ]gblm^u ij_^ihqlbl_evg__ ^ey hibkZgby jZaf_ jh\ hqZ]h\hc h[eZklb q_f fhf_glgu_
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